WAF Configuration via Trusted User Request Monitoring
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Solution Overview
Problem
Current web application firewall (WAF) configurations are inefficient and prone to human error, requiring advanced knowledge of attack patterns and being inflexible to dynamic changes in web applications, leading to outdated and vulnerable security settings.
Innovation Solution
A method and system for continuously configuring a WAF by generating authorization rules based on requests from trusted users, using a monitoring agent to validate and create whitelists, allowing adaptive configuration without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual configuration of WAF policies is performed, then security policies can be configured based on known attack patterns, but the configuration process is time-consuming and prone to human error
Solution Approach 1:
The system performs self-service by automatically generating WAF authorization rules through monitoring legitimate user requests and analyzing application behavior patterns. The monitoring agent installed on the web application server captures requests and responses, and the system automatically creates security policies without requiring manual administrator intervention for each rule configuration.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring web application traffic and using the collected data to dynamically adjust and update WAF authorization rules. The system learns from legitimate user interactions and automatically refines security policies based on observed patterns, creating a closed-loop configuration process.
2Reliability
If WAF configuration is performed manually with advance knowledge of attack patterns, then security policies can be established, but the policies become outdated and flawed when application requirements change
Solution Approach 1:
The system transitions from static manual configuration to dynamic automated configuration. WAF authorization rules are continuously updated based on real-time monitoring of legitimate user requests and application behavior changes. The system adapts to application modifications automatically, ensuring security policies remain current without requiring manual reconfiguration.
Solution Approach 2:
The system ensures continuous security policy maintenance by constantly monitoring web application traffic and automatically updating authorization rules. Rather than periodic manual updates, the configuration process runs continuously, ensuring security policies evolve alongside application changes without interruption or human intervention.
3Extent of automation
If crawling is used to learn application structure and generate policies, then policies can be generated automatically, but crawling cannot rapidly adapt to changes in web applications that occur every few seconds
Solution Approach 1:
The system performs preliminary action by pre-installing monitoring agents on the web application server that continuously capture requests and responses. This preliminary setup enables the system to immediately detect and respond to application changes without needing to crawl or re-discover the application structure, allowing rapid adaptation to changes occurring every few seconds.
Solution Approach 2:
The system replaces the mechanical crawling process with an electronic monitoring and analysis system. Instead of periodically crawling the application to discover changes, the system uses automated monitoring agents that continuously track application behavior and traffic patterns, enabling near-real-time detection and response to application changes through electronic data capture and analysis.
Data Source
AI summary
A method and system for continuously configuring a web application firewall (WAF) are provided. The method includes receiving a request directed at a protected web application, wherein the request is received from a client device associated with a trusted user account, and wherein the protected web application is protected by the WAF; validating the received request based on at least a signature included in a header of the received request; when the received request is validated, generating an authorization rule based on the received request, wherein the authorization rule allows access to a resource of the protected web application designated in the received request, wherein the generated authorization rule is included in at least one whitelist the WAF is configured with; and configuring the WAF with the generated authorization rule to allow the received request and subsequent request to be directed to the resource of the protected web application.